From: Lee Jones <lee.jones@linaro.org>
To: linus.walleij@linaro.org, bgolaszewski@baylibre.com
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
Lee Jones <lee.jones@linaro.org>,
Asmaa Mnebhi <Asmaa@mellanox.com>
Subject: [PATCH 10/10] gpio: gpio-mlxbf2.c: Provide __releases() annotation to stop confusing Sparse
Date: Tue, 30 Jun 2020 14:33:45 +0100
Message-ID: <20200630133345.2232932-11-lee.jones@linaro.org> (raw)
In-Reply-To: <20200630133345.2232932-1-lee.jones@linaro.org>
Sparse cannot peer into other functions to see when and if locks are
acquired and released, thus it simply warns that a 'context imbalance'
is detected instead. Let's be kind to Sparse and let it know that
this behaviour is intentional.
drivers/gpio/gpio-mlxbf2.c:125:12: warning: context imbalance in 'mlxbf2_gpio_lock_acquire' - different lock contexts for basic block
drivers/gpio/gpio-mlxbf2.c:151:13: warning: context imbalance in 'mlxbf2_gpio_lock_release' - unexpected unlock
Cc: Asmaa Mnebhi <Asmaa@mellanox.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/gpio/gpio-mlxbf2.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpio/gpio-mlxbf2.c b/drivers/gpio/gpio-mlxbf2.c
index 861a8d0a84be0..befa5e1099439 100644
--- a/drivers/gpio/gpio-mlxbf2.c
+++ b/drivers/gpio/gpio-mlxbf2.c
@@ -149,6 +149,8 @@ static int mlxbf2_gpio_lock_acquire(struct mlxbf2_gpio_context *gs)
* Release the YU arm_gpio_lock after changing the direction mode.
*/
static void mlxbf2_gpio_lock_release(struct mlxbf2_gpio_context *gs)
+ __releases(&gs->gc.bgpio_lock)
+ __releases(yu_arm_gpio_lock_param.lock)
{
writel(YU_ARM_GPIO_LOCK_RELEASE, yu_arm_gpio_lock_param.io);
spin_unlock(&gs->gc.bgpio_lock);
--
2.25.1
next prev parent reply index
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-30 13:33 [PATCH 00/10] Clean GPIO of W=1 warnings Lee Jones
2020-06-30 13:33 ` [PATCH 01/10] gpio: gpiolib-of: Provide documentation for of_gpio_spi_cs_get_count() Lee Jones
2020-07-08 7:14 ` Linus Walleij
2020-06-30 13:33 ` [PATCH 02/10] gpio: gpio-altera: Add missing kerneldoc entry and demote comment Lee Jones
2020-07-08 7:15 ` Linus Walleij
2020-06-30 13:33 ` [PATCH 03/10] gpio: gpio-ml-ioh: Fix missing ':' in 'struct ioh_gpio_reg_data Lee Jones
2020-06-30 14:01 ` Andy Shevchenko
2020-06-30 13:33 ` [PATCH 04/10] gpio: gpio-pmic-eic-sprd: Fix incorrectly named property 'map' Lee Jones
2020-06-30 15:01 ` Baolin Wang
2020-07-08 7:16 ` Linus Walleij
2020-06-30 13:33 ` [PATCH 05/10] gpio: gpio-sama5d2-piobu: Demote all kerneldoc headers to basic comment blocks Lee Jones
2020-07-01 7:05 ` Ludovic Desroches
2020-07-08 7:17 ` Linus Walleij
2020-06-30 13:33 ` [PATCH 06/10] gpio: gpio-syscon: Fix formatting issues which confuse kerneldoc Lee Jones
2020-07-08 7:18 ` Linus Walleij
2020-06-30 13:33 ` [PATCH 07/10] gpio: gpio-it87: " Lee Jones
2020-07-08 7:19 ` Linus Walleij
2020-06-30 13:33 ` [PATCH 08/10] gpio: gpio-mlxbf: Tell the compiler that ACPI functions may not be used Lee Jones
2020-07-08 7:20 ` Linus Walleij
2020-06-30 13:33 ` [PATCH 09/10] gpio: gpio-mlxbf2: Tell the compiler that ACPI functions may not be use Lee Jones
2020-06-30 14:17 ` Asmaa Mnebhi
2020-07-08 7:22 ` Linus Walleij
2020-06-30 13:33 ` Lee Jones [this message]
2020-06-30 14:18 ` [PATCH 10/10] gpio: gpio-mlxbf2.c: Provide __releases() annotation to stop confusing Sparse Asmaa Mnebhi
2020-07-08 7:23 ` Linus Walleij
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200630133345.2232932-11-lee.jones@linaro.org \
--to=lee.jones@linaro.org \
--cc=Asmaa@mellanox.com \
--cc=bgolaszewski@baylibre.com \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Linux-GPIO Archive on lore.kernel.org
Archives are clonable:
git clone --mirror https://lore.kernel.org/linux-gpio/0 linux-gpio/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 linux-gpio linux-gpio/ https://lore.kernel.org/linux-gpio \
linux-gpio@vger.kernel.org
public-inbox-index linux-gpio
Example config snippet for mirrors
Newsgroup available over NNTP:
nntp://nntp.lore.kernel.org/org.kernel.vger.linux-gpio
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git